org.apache.hadoop.fs.shell
Class Count

java.lang.Object
  org.apache.hadoop.conf.Configured
      org.apache.hadoop.fs.shell.Command
          org.apache.hadoop.fs.shell.Count

All Implemented Interfaces:

Configurable

public class Count
extends Command

Count the number of directories, files, bytes, quota, and remaining quota.

Field Summary

static java.lang.String	DESCRIPTION
static java.lang.String	NAME
static java.lang.String	USAGE

Fields inherited from class org.apache.hadoop.fs.shell.Command

args

Constructor Summary

Count(java.lang.String[] cmd, int pos, Configuration conf)
Constructor

Method Summary

java.lang.String	getCommandName() Return the command's name excluding the leading character -
static boolean	matches(java.lang.String cmd) Check if a command is the count command
protected void	run(Path path) Execute the command on the input path

Methods inherited from class org.apache.hadoop.fs.shell.Command

runAll

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NAME

public static final java.lang.String NAME

See Also:

Constant Field Values

USAGE

public static final java.lang.String USAGE

See Also:

Constant Field Values

DESCRIPTION

public static final java.lang.String DESCRIPTION

Constructor Detail

Count

public Count(java.lang.String[] cmd,
             int pos,
             Configuration conf)

Constructor

Parameters:

cmd - the count command

pos - the starting index of the arguments

Method Detail

matches

public static boolean matches(java.lang.String cmd)

Check if a command is the count command

Parameters:

cmd - A string representation of a command starting with "-"

Returns:

true if this is a count command; false otherwise

getCommandName

public java.lang.String getCommandName()

Description copied from class: Command

Return the command's name excluding the leading character -

Specified by:

getCommandName in class Command

run

protected void run(Path path)
            throws java.io.IOException

Description copied from class: Command

Execute the command on the input path

Specified by:

run in class Command

Parameters:

path - the input path

Throws:

java.io.IOException - if any error occurs